Elapsed time recopxder



July 24, 1956 w. A. BLACK ELAPSED TIME RECORDER 21 Sheets-Sheet 1 FiledMarch 17, 1953 INVENTOR WILLIAM A. B LACK ATTORNEY 21 Sheets-Sheet 2 W.A. BLACK ELAPSED TIME RECORDER July 24, 1956 Filed March 17, 1953INVENTOR WILLIAM A. B LACK ATTORNEY y 24, 1956 w. A. BLACK 2,755,995

ELAPSED TIME RECORDER Filed March 17, 1955 21 Sheets-Sheet 3 INVENTORWILLIAM A. BLACK ATTORN EY 21 Sheets-Sheet 4 Filed March 17, 1955 MYNINVENTOR WILLIAM A. BLA CF ATTORN EY July 24, 1956 w. A. BLACK 2,755,995

EILAPSED TIME RECORDER Filed March 1'7, 1953 21 Sheets-Sheet 5 ga 3 kINVENTOR WILLIAM A BLACK ATTORN EY July 24, 1956 w. A. BLACK 2,755,995

ELAPSED TIME RECORDER Filed March 17, 1953 21 Sheets-Sheet 6 T/MEM/fiffl 1? PUNCH 1 4105 T/Mf Wht'fl & PUNCH m1 (/5 (MIA/756) (H0 0/?5)'1 a 4 8 16 32 1 2 4 a 16 77/145 PUNCH 5:15am? M95516 T/ME PU/VCH515156705" WHEELS (Ml/V0755) ff/Ol/Rd) INVENTOR:

49 WILLIAM ABLACK WATTORNEY July 24, 1956 w. A. BLACK ELAPSED TIMERECORDER 21 Sheets-Sheet 7 Filed March 17, 1953 INVENTOR WILLIAM A.BLACK ATTO RNEY July 24, 1956 W. A. BLACK ELAPSEID TIME RECORDER FiledMarch 17, 1953 21 Sheets-Sheet 9 .9 INVENTOR f7 \/(ILLIAM ABLACK 4 M mATTO R N EY July 24, 1956 w. A. BLACK ELAPSED TIME RECORDER 21Sheets-Sheet 10 Filed March 17, 1953 47/ JOa I i i 'l'll IIIIIiT 'IIIIIIIIIIIII'IIIIIIII/ INVENTC WILLIAM A. BLACK BY ATTORNEY S N m m A {is re1-51 m M N 3- w N |||I a w w 6 W a QW wk M (W Hi1 M c P I I l l I I IIsmnn I952 MAR ELAPSED TIME July 24, 1956 w. A. BLACK 2,

ELAPSED TIME RECORDER Filed March 17, 1953 21 Sheets-Sheet 11 5/ 619 J44 a??? MIA/55 a Hal/Hi 9 J6 3 4 8 5 32 l ,2 4 8 5 7a;

(T INVENTQR /-//5 ROW 0055 #07 AFFECT 7H5 COMPUT7?, 507' WI LLIAM A. BLAC K MERELY c0055 77/5 77M OFDHY Aral M/sE/PWON BY 0F CHRD.)

ATTORNEY July 24, 1956 w. A. BLACK ELAPSED TIME RECORDER 21 Sheets-Sheet12 Filed March 17, 1953 Years Mont/2s 0139's Hal/R5 INVENTOR WILLIAM A.BLA CK M/iuTEs ATTORN EY y 1956 w. A. BLACK 2,755,995

ELAPSED TIME RECORDER Filed March 17, 1953 21 Sheets-Sheet 13 INVENTORWILLIAM A BLACK ATTO R N EY July 24, 1956 w. A. BLACK ELAPSED TIMERECORDER Fil'ed March 17, 1953 21 Sheets-Sheet 14 J0! fl 4 Z9 NVENTOR WILLIA M A. BLACK ATTORNEY AMA /a? 583 I /15 m B #3 (3&4

y 1956 w. A. BLACK 2,755,995

ELAPSED TIME RECORDER Filed March 17, 1953 21 Sheets-Sheet 16 &

llllllll H lllllllll H llllllufl 63 i; INVENTOR WILLIAM A. BLACKATTORNEY y 24, 1956 w. A. BLACK 2,755,995

ELAPSED TIME RECORDER Filed March 17, 1953 21 Sheets-Sheet 17 I INVENTORWILLIAM A. BLACK 58 ATTORNEY y 19-55 w. A. BLACK 2,755,995

ELAPSED TIME RECORDER Filed March 17, 1953 21 Sheets-Sheet 19 amMO/v/IMS ME? INVENTOR WILLIAM ABLACK ATTO RNEY July 24, 1956 w. A. BLACKELAPSED TIME RECORDER 21 Sheets-Sheet 20 Filed March 17, 1953 X @503 ii217? 2000 W mw mw w m A m. m A m w w w G m L. A m. m m m WM m p mWILLIAM A. BLACK ATTORNEY

